//
//  Student.h
//  08-类的拓展
//
//  Created by dllo on 16/7/13.
//  Copyright © 2016年 dllo. All rights reserved.
//

#import <Foundation/Foundation.h>

@protocol GetMacBook <NSObject>
@required
- (NSString *)buyMacBook:(NSString *)money;
@optional
- (void)drawBill;



@end

@interface Student : NSObject

//委托方的写法
@property (nonatomic, weak) id<GetMacBook>delegate;


//时机
- (void)seeWeiChar ;















@end
